Pollen tube entered one synergid, and released two sperms between egg and central cells.
精子脱掉细胞质鞘后,形精核与细胞质体;
Pollen tube entered one synergid, and released two sperms between egg and central cells.
精子脱掉细胞质鞘后,形精核与细胞质体;
Vacuoles in the synergids tended to concentrate mainly in the chalazal region.There was a peak period of lipid formation in the two synergids.
三是助细胞与珠心相接胚囊壁有些位出十明显的突起,个别突起内有大型嗜锇体。
声明:以上句、词性类均由互联网资源自动生,未经过人工审核,其表达内容亦不代表本软件的观点;若发问题,欢迎向我们指正。